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Indexing Spark Plugs

To: Triumphs@autox.team.net
Subject: Indexing Spark Plugs
From: EUlm890623@aol.com
Date: Fri, 30 Aug 1996 20:52:39 -0400
My fellow Triumphers,

I have the head off on my Spitfire and am having a go at indexing the spark
plugs, (i.e. using spark plug washers as shims to aim the plug electrode at
the intake valve). Having never done this before I've noticed that it can
take 3 or 4 washers to get  the little suckers to aim properly. This is
causing some of  the plugs to ride  noticably higher in the head. Is this the
proper procedure or will the way the plugs are riding couteract any increase
in performance I hope to gain?

Great big thanks in advance,

Eddy Ulm
1980 Spitfire
1963 TR4

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